Facebook updated their messenger app Thursday with the ability to make free voice calls to their Facebook friends.
The new feature is similar to voice calling built in to other messaging apps such as Viber and WeChat.
Users can make phone calls to friends for free, provided they have at least a wifi connection.
Now, when you view Facebook contacts from within Messenger, a phone icon appears next to their name. Tap the icon to start a phone call. Both participants need to have a wifi or data connection to make or receive calls.